Process of obtaining oxygen.



UNITED STATES Patented February 14, 1905.

GEORGE FRANQOIS J AUBERT, OF PARIS, FRANCE.

PROCESS OF OBTAINING OXYGEN.

SPECIFICATION forming part of Letters Patent No. 782,609, dated February14, 1905.

I Application filed January 29, 1904. Serial No. 191,126.

To all whom it may concern:

' not it is preferable to mix the sulfate of iron (or of manganese) onlyat the moment of use, because the sulfate of iron becomes transformedafter a time into the little active ferric sulfate. It is expedient,therefore, to proceed as follows: One hundred kilos of dry chlorid oflime are pulverized with five kilos of sulfate of copper, of nickel, ofcobalt, or other suitable salt. A white powder is thus obtained whichkeeps very well and which generates oxygen when merely placed into afifteen-percent. solution of sulfate of iron or of manganese.

Although in the claims I have specifically referred to the use of thesalts of copper, it is to be understood that I consider the salts ofcobalt and the salts of nickel as equivalents for the salts of copper,and therefore within the scope of my invention.

Having now particularly described and ascertained the nature of my saidinvention and witnesses.

in what manner the, same is to be performed, 1 declare that what I claimis.

1. The process of preparing oxygen, which consists in adding a solutionof the salt of a metal of the iron group to a mixture containing chloridof lime and a salt of copper.

. 2. The process of preparing oxygen, which consists in adding asolution of the salt of a metal of the iron group to a powdered mixturecontaining chlorid of lime and a salt of copper.

3. The process of preparing oxygen, which consists in adding. a solutionof a salt of iron to a mixture containing chlorid of lime and a salt ofcopper.

4. The process of preparing oxygen, which consists in adding a solutionof sulfate of iron to a mixture containing chlorid of lime and a salt ofcopper.

5. The process of preparing oxygen, which consists in adding a solutionof sulfate of iron to a mixture containing chlorid of lime and sulfateof copper.

6. The process of preparing oxygen, which consists in adding afifteen-per cent. solution of sulfate of iron to a mixture containingone hundred parts chlorid of lime and five parts sulfate of copper.

In testimony whereof I have signed this specification in the presence oftwo subcribing GEORGE FRANCOIS JAUBERT.

Witnesses:

JEAN PIERRE ETIENNE VAUOHER, HANSON O. CoxE.

